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Cartilage regeneration

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https://www.readbyqxmd.com/read/28722162/cyanidin-suppresses-autophagic-activity-regulating-chondrocyte-hypertrophic-differentiation
#1
Zhen Cao, Song Huang, Ce Dou, Qiang Xiang, Shiwu Dong
Cartilage is a kind of special connective tissue which does not contain neither blood vessels nor lymphatics and nerves. Therefore, the damage in cartilage is difficult to be repaired spontaneously. Constructing tissue engineered cartilage provides a new technique for cartilage repairing. Mesenchymal stem cells (MSCs) possess a unique capability of self-renew and can differentiate into pre-chondrocytes which are frequently applied as seed cells in tissue engineering. However, in regenerated cartilage the chondrocytes derived from MSCs can hardly maintain homeostasis and preferentially present hypertrophic like phenotype...
July 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28721819/the-application-of-scaffold-materials-in-cartilage-tissue-engineering
#2
Na Fu, Tengzhe Dong, Ai Meng, Zhaosong Meng, Bofeng Zhu, Yunfeng Lin
The management of chondral defects has been a challenge for a long time because of the poor self-healing capacity of articular cartilage. Many approaches ranging from symptomatic treatment to structural cartilage regeneration are not that successful with very limited satisfactory results. Chondral defects caused by tumor, trauma, infection, congenital malformations are very common in clinical trials. It seriously affects the patient's physical function and quality of life. Cartilage tissue engineering, which involves novel natural scaffolds, has emerged as a promising strategy for cartilage regeneration and repair...
July 18, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28721683/mesenchymal-stem-progenitor-cells-derived-from-articular-cartilage-synovial-membrane-and-synovial-fluid-for-cartilage-regeneration-current-status-and-future-perspectives
#3
REVIEW
Yi-Zhou Huang, Hui-Qi Xie, Antonietta Silini, Ornella Parolini, Yi Zhang, Li Deng, Yong-Can Huang
Large articular cartilage defects remain an immense challenge in the field of regenerative medicine because of their poor intrinsic repair capacity. Currently, the available medical interventions can relieve clinical symptoms to some extent, but fail to repair the cartilaginous injuries with authentic hyaline cartilage. There has been a surge of interest in developing cell-based therapies, focused particularly on the use of mesenchymal stem/progenitor cells with or without scaffolds. Mesenchymal stem/progenitor cells are promising graft cells for tissue regeneration, but the most suitable source of cells for cartilage repair remains controversial...
July 18, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28719231/biologic-injections-for-osteoarthritis-and-articular-cartilage-damage-can-we-modify-disease
#4
Weilong J Shi, Fotios P Tjoumakaris, Mayan Lendner, Kevin B Freedman
OBJECTIVE: The purpose of the present investigation is to conduct a systematic review of the literature to review the clinical results of platelet rich plasma (PRP) and mesenchymal stem cell treatments (MSC) (biologics) for articular cartilage lesions and osteoarthritis of the knee. METHODS: A search of the PubMed, EMBASE, and Cochrane databases was performed to identify studies involving biologic therapy for osteoarthritis or osteochondral defects. Only Level I-III clinical trials with at least 3-month follow-up were included...
July 18, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28715376/a-rat-tibial-growth-plate-injury-model-to-characterize-repair-mechanisms-and-evaluate-growth-plate-regeneration-strategies
#5
Christopher B Erickson, Nichole Shaw, Nancy Hadley-Miller, Michael S Riederer, Melissa D Krebs, Karin A Payne
A third of all pediatric fractures involve the growth plate and can result in impaired bone growth. The growth plate (or physis) is cartilage tissue found at the end of all long bones in children that is responsible for longitudinal bone growth. Once damaged, cartilage tissue within the growth plate can undergo premature ossification and lead to unwanted bony repair tissue, which forms a "bony bar." In some cases, this bony bar can result in bone growth deformities, such as angular deformities, or it can completely halt longitudinal bone growth...
July 4, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28713920/low%C3%A2-dose-halofuginone-inhibits-the-synthesis-of-type-i-collagen-without-influencing-type-ii-collagen-in-the-extracellular-matrix-of-chondrocytes
#6
Zeng Li, Hao Fei, Zhen Wang, Tianyi Zhu
Full‑thickness and large area defects of articular cartilage are unable to completely repair themselves and require surgical intervention, including microfracture, autologous or allogeneic osteochondral grafts, and autologous chondrocyte implantation. A large proportion of regenerative cartilage exists as fibrocartilage, which is unable to withstand impacts in the same way as native hyaline cartilage, owing to excess synthesis of type I collagen in the matrix. The present study demonstrated that low‑dose halofuginone (HF), a plant alkaloid isolated from Dichroa febrifuga, may inhibit the synthesis of type I collagen without influencing type II collagen in the extracellular matrix of chondrocytes...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28706807/labral-gracilis-tendon-allograft-reconstruction-and-cartilage-regeneration-scaffold-for-an-uncontained-acetabular-cartilage-defect-of-the-hip
#7
Laurel E MacInnis, Ahmed Al Hussain, Catherine Coady, Ivan H Wong
Hip cartilage injuries are very common, with rates as high as 50% having been reported in some series; abnormal femoral acetabular contact can result in a full-thickness cartilage defect or labral lesion. The prevalence of labral lesions can be as high as 55%. This Technical Note describes an arthroscopic technique to reconstruct an uncontained, full-thickness, focal cartilage defect of the acetabulum, with reconstruction of the missing labrum using a gracilis allograft and use of a biological liquid scaffold for cartilage reconstruction...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28705606/regenerative-approaches-for-cartilage-repair-in-the-treatment-of-osteoarthritis
#8
REVIEW
Meihan Li, Rong Xiao, Jing B Li, Qing Zhu
Osteoarthritis (OA) as a debilitating affliction of joints currently affects millions of people and remains an unsolved problem. The disease involves multiple cellular and molecular pathways that converge on the progressive destruction of cartilage. Activation of cartilage regenerative potential and specific targeting pathogenic mediators have been the major focus of research efforts aimed at slowing the progression of cartilage degeneration and preserve joint function. This review will summarize recent key discoveries toward better understanding of the complex mechanisms behind OA development and highlight the latest advances in basic and clinical research in the approach for cartilage regeneration...
July 10, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28705162/the-effect-of-autologous-adipose-derived-mesenchymal-stem-cell-therapy-in-the-treatment-of-a-large-osteochondral-defect-of-the-knee-following-unsuccessful-surgical-intervention-of-osteochondritis-dissecans-a-case-study
#9
Julien Freitag, Kiran Shah, James Wickham, Richard Boyd, Abi Tenen
BACKGROUND: A prospective analysis of the effect of autologous adipose derived mesenchymal stem cell (MSC) therapy in the treatment of an osteochondral defect of the knee with early progressive osteoarthritis following unsuccessful surgical intervention of osteochondritis dissecans (OCD). CASE PRESENTATION: After failed conventional management of OCD a patient undergoes intra-articular MSC therapy. Patient outcome measures included the Numeric Pain Rating Scale (NPRS), the Western Ontario and McMaster Universities Arthritis Index (WOMAC) and the Knee Injury and Osteoarthritis Outcome Score (KOOS)...
July 14, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28698817/the-fabrication-of-biomimetic-biphasic-can-pac-hydrogel-with-a-seamless-interfacial-layer-applied-in-osteochondral-defect-repair
#10
Jinfeng Liao, Taoran Tian, Sirong Shi, Xueping Xie, Quanquan Ma, Guo Li, Yunfeng Lin
Cartilage tissue engineering based on biomimetic scaffolds has become a rapidly developing strategy for repairing cartilage defects. In this study, a biphasic CAN-PAC hydrogel for osteochondral defect (OCD) regeneration was fabricated based on the density difference between the two layers via a thermally reactive, rapid cross-linking method. The upper hydrogel was cross-linked by CSMA and NIPAm, and the lower hydrogel was composed of PECDA, AAm and PEGDA. The interface between the two layers was first grafted by the physical cross-linking of calcium gluconate and alginate, followed by the chemical cross-linking of the carbon-carbon double bonds in the other components...
2017: Bone Research
https://www.readbyqxmd.com/read/28698718/the-holy-grail-of-orthopedic-surgery-mesenchymal-stem-cells-their-current-uses-and-potential-applications
#11
REVIEW
Roberto Berebichez-Fridman, Ricardo Gómez-García, Julio Granados-Montiel, Enrique Berebichez-Fastlicht, Anell Olivos-Meza, Julio Granados, Cristina Velasquillo, Clemente Ibarra
Only select tissues and organs are able to spontaneously regenerate after disease or trauma, and this regenerative capacity diminishes over time. Human stem cell research explores therapeutic regenerative approaches to treat various conditions. Mesenchymal stem cells (MSCs) are derived from adult stem cells; they are multipotent and exert anti-inflammatory and immunomodulatory effects. They can differentiate into multiple cell types of the mesenchyme, for example, endothelial cells, osteoblasts, chondrocytes, fibroblasts, tenocytes, vascular smooth muscle cells, and sarcomere muscular cells...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28695824/a-multi-scale-model-for-hair-follicles-reveals-heterogeneous-domains-driving-rapid-spatiotemporal-hair-growth-patterning
#12
Qixuan Wang, Ji Won Oh, Hye-Lim Lee, Anukriti Dhar, Tao Peng, Raul Ramos, Christian Fernando Guerrero-Juarez, Xiaojie Wang, Ran Zhao, Xiaoling Cao, Jonathan Le, Melisa A Fuentes, Shelby C Jocoy, Antoni R Rossi, Brian Vu, Kim Pham, Xiaoyang Wang, Nanda Maya Mali, Jung Min Park, June-Hyug Choi, Hyunsu Lee, Julien Legrand, Eve Kandyba, Jung Chul Kim, Moonkyu Kim, John Foley, Zhengquan Yu, Krzysztof Kobielak, Bogi Andersen, Kiarash Khosrotehrani, Qing Nie, Maksim V Plikus
The control principles behind robust cyclic regeneration of hair follicles (HFs) remain unclear. Using multi-scale modeling we show that coupling inhibitors and activators with physical growth of HFs is sufficient to drive periodicity and excitability of hair regeneration. Model simulations and experimental data reveal that mouse skin behaves as a heterogeneous regenerative field, composed of anatomical domains where HFs have distinct cycling dynamics. Interactions between fast-cycling chin and ventral HFs and slow-cycling dorsal HFs produce bilaterally symmetric patterns...
July 11, 2017: ELife
https://www.readbyqxmd.com/read/28693305/comparison-the-characteristics-of-canine-adipose-tissue-derived-mesenchymal-stem-cells-extracted-from-different-sites-and-at-different-passage-numbers
#13
Kevin M Yaneselli, Cristiana Palma Kuhl, Paula Barros Terraciano, Fernanda de Los Santos de Oliveira, Sabrina Beal Pizzato, Kamila Pazza, Alessandra Bileski Magrisso, Vanessa Torman, Analía Rial, María Moreno, Silvia Llambí, Elizabeth Cirne Lima, Jacqueline Maisonnave
Mesenchymal Stem Cells (MSCs) have attractive characteristics for therapy in animal models and veterinary medicine, due to the capacity of inducing tissue regeneration and immunomodulation. The objective of this study was to evaluate the differences between canine adipose tissue-derived MSCs (AD-MSCs) extracted from subcutaneous (Sc) and visceral (Vs) sites. Surface antigenic markers, in vitro differentiation and mineralized matrix quantification of AD-MSCs in different passages (P4, P6 and P8) were studied...
July 10, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28692374/is-there-a-role-for-stem-cells-in-treating-articular-injury
#14
Yusuf H Mirza, Sam Oussedik
Articular cartilage is a specialized tissue with a high prevalence of injuries. The complex architecture of articular cartilage means that injuries are difficult to treat. The sequelae of such injuries include post-traumatic osteoarthritis. Current treatments include microfracture, microdrilling, osteochondral transplantation and matrix autologous chondral implantation. However, current surgical therapies have a number of disadvantages. Mesenchymal stem cells have been suggested as a potential alternative therapy, with a theoretical ability to regenerate articular cartilage...
July 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28684351/effectiveness-of-chitosan-scaffold-in-skin-bone-and-cartilage-healing
#15
REVIEW
Ahmad Oryan, Sonia Sahvieh
Chitosan (CS) is a carbohydrate biopolymer, which has been known as a biological material in promoting the healing process of soft and hard connective tissues. It is biocompatible, biodegradable, bioactive, non-toxic, non-expensive and non-immunogenic, with antibacterial capability. Additionally, the capacity of forming complexes with other anionic biomaterials and molecules offers CS the characteristics to be used in biomedical applications. Therefore, this natural polysaccharide has widely been used as a wound dressing and in bone and cartilage regeneration because of these considerable properties...
July 3, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28683690/using-costal-chondrocytes-to-engineer-articular-cartilage-with-applications-of-passive-axial-compression-and-bioactive-stimuli
#16
Le Huwe, Gurdeep Sullan, Jerry C Hu, Kyriacos A Athanasiou
Generating neocartilage with suitable mechanical integrity from a cell source that can circumvent chondrocyte scarcity is indispensable for articular cartilage regeneration strategies. Costal chondrocytes of the rib eliminate donor site morbidity in the articular joint, but it remains unclear how neocartilage formed from these cells responds to mechanical loading, especially if the intent is to use it in a load-bearing joint. In a series of three experiments, this study sought to determine efficacious parameters of passive axial compressive stimulation that would enable costal chondrocytes to synthesize mechanically robust cartilage...
July 6, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28681971/growth-plate-expression-profiling-large-and-small-breed-dogs-provide-new-insights-in-endochondral-bone-formation
#17
Michelle Teunissen, Frank M Riemers, Dik van Leenen, Marian J A Groot Koerkamp, Björn P Meij, Jacqueline Alblas, Louis C Penning, Alberto Miranda-Bedate, Marianna A Tryfonidou
The difference in the adult height of mammals, and hence in endochondral bone formation, is not yet fully understood and may serve to identify targets for bone and cartilage regeneration. In line with this hypothesis, the intra-species disparity between the adult height of Great Danes and Miniature Poodles was investigated at a transcriptional level. Microarray analysis of the growth plate of 5 Great Danes and 5 Miniature Poodles revealed 2981 unique genes that were differentially expressed, including many genes with an unknown role in skeletal development...
July 6, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28680892/vitamin-d-and-its-effects-on-articular-cartilage-and-osteoarthritis
#18
REVIEW
Rachel J Garfinkel, Matthew F Dilisio, Devendra K Agrawal
BACKGROUND: Osteoarthritis (OA) currently affects 10% of the American population. There has been a recent push to determine exactly what causes OA and how it can be treated most effectively. Serum vitamin D levels have been associated with OA and may have an effect on articular cartilage remodeling. PURPOSE: To critically review the published research on the effect of vitamin D on articular cartilage and the development of OA as well as on the mechanism behind cartilage regeneration and degeneration...
June 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28677757/hypertrophic-differentiation-of-mesenchymal-stem-cells-is-suppressed-by-xanthotoxin-via-the-p38%C3%A2-mapk-hdac4-pathway
#19
Zhen Cao, Yun Bai, Chuan Liu, Ce Dou, Jianmei Li, Junyu Xiang, Chunrong Zhao, Zhao Xie, Qiang Xiang, Shiwu Dong
Chondrocyte hypertrophy is a physiological process in endochondral ossification. However, the hypertrophic‑like alterations of chondrocytes at the articular surface may result in osteoarthritis (OA). In addition, the generation of fibrocartilage with a decreased biological function in tissue engineered cartilage, has been attributed to chondrocyte hypertrophy. Therefore, suppressing chondrocyte hypertrophy in OA and the associated regeneration of non‑active cartilage is of primary concern. The present study examined the effects of xanthotoxin (XAT), which is classified as a furanocoumarin, on chondrocyte hypertrophic differentiation of mesenchymal stem cells...
June 29, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28672920/in-vivo-repair-of-full-thickness-cartilage-defect-with-human-ipsc-derived-mesenchymal-progenitor-cells-in-a-rabbit-model
#20
Xingquan Xu, Dongquan Shi, Yubao Liu, Yao Yao, Jin Dai, Zhihong Xu, Dongyang Chen, Huajian Teng, Qing Jiang
Cell-based tissue engineering has the potential to restore cartilage defects. Induced pluripotent stem cells (iPSCs) are regarded as an alternative cell source in regenerative medicine. The purpose of the present study was to evaluate the use of mesenchymal stem cells (MSCs) derived from human iPSCs (hiPSCs) for the regeneration of cartilage defects in a rabbit model. Cartilage defects were made in the patellar grooves of New Zealand white rabbits. The rabbits were then divided into three groups according to implantation: Control group, scaffold implantation group and scaffold/hiPSCs-MSCs (experimental) group...
July 2017: Experimental and Therapeutic Medicine
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